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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Process energy

Graham Langton

Building Services Engineer

PM-Group

LEEDuser Basic Member

1 thumbs up

December 3, 2012

Regarding what is taken as a process energy. Ashrae 90.1 - "Energy consumed in support of a manufacturing, industrial, or commercial process other than conditioning spaces and maintaining comfort and amenities for the occupants of a building". So am I correct in saying anything out side occupant comfort levels is taken as process, say a space cooled to 16 degrees celcius? Or a least that part of the energy that is beyond comfort levels? Also, is the energy serving a 100% fresh air AHU (for process purposes), taken as process energy as this is not for occupant comfort, regardless of temperature? Thanks in advance!

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Anthony Hardman

Building Performance Analyst

The Green Engineer

LEEDuser Premium Member

11 thumbs up

Mon, 12/03/2012 - 15:19

I don't either scenario would be considered a process load. The key phrase is, "other than conditioning spaces." For example, we wouldn't consider the air serving an un-occupiable storage room a process load.

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